Real-time gas monitoring method and system
First Claim
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1. A method for monitoring a concentration of a gas in an enclosed space, comprising:
- injecting said gas into said enclosed system using a gas injection system;
measuring a parameter indicative of said gas concentration using a gas sensor;
comparing said parameter with a predetermined limit value of said parameter using a microprocessor, and if said parameter is greater than said predetermined limit value then activating a shut-off of the gas injection system;
continuously monitoring one of a hardware element, a software function and a control signal used to carry out the method to identify at least one fault in at least one of said hardware element, said software function and said control signal; and
if a fault is detected activating said shut-off of the gas injection system;
wherein said continuously monitoring step is carried out by one of a primary error detection module for identifying hardware faults and a secondary error detection module for identifying software and control faults;
wherein each of said primary and secondary error detection modules are integrated with said microprocessor.
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Abstract
A method for monitoring the concentration of a gas in an enclosed space is provided. A gas is injected into the space, by a gas injection system. The concentration of the gas is measured using a gas sensor. The concentration is compared with predetermined limits, and the gas injection system is shut off if the concentration is above one of the predetermined limits. In addition, hardware, software, and signal control elements which perform the monitoring, are continuously monitored for faults, and if a fault is detected, the gas injection system is shut off.
14 Citations
25 Claims
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1. A method for monitoring a concentration of a gas in an enclosed space, comprising:
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injecting said gas into said enclosed system using a gas injection system; measuring a parameter indicative of said gas concentration using a gas sensor; comparing said parameter with a predetermined limit value of said parameter using a microprocessor, and if said parameter is greater than said predetermined limit value then activating a shut-off of the gas injection system; continuously monitoring one of a hardware element, a software function and a control signal used to carry out the method to identify at least one fault in at least one of said hardware element, said software function and said control signal; and if a fault is detected activating said shut-off of the gas injection system; wherein said continuously monitoring step is carried out by one of a primary error detection module for identifying hardware faults and a secondary error detection module for identifying software and control faults; wherein each of said primary and secondary error detection modules are integrated with said microprocessor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for monitoring a concentration of a gas in an enclosed space, comprising:
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a gas injection system for injecting said gas into said enclosed space; a gas sensor for measuring a parameter indicative of said gas concentration; a microprocessor for comparing said parameter with a predetermined limit value of said parameter; a shut-off means in communication with said microprocessor;
wherein if said parameter is greater than said predetermined limit value then activating said shut-off means to shut-off the gas injection system; andan error detection means for continuously monitoring one of a hardware element, a software function and a control signal to identify faults in one of said hardware element, said software function and said control signal; whereby if a fault is detected activating said shut-off means to shut-off the gas injection system; wherein said error detection means comprises one of a primary error detection module for identifying hardware faults and a secondary error detection module for identifying software and control faults; wherein each of said primary and secondary error detection modules are integrated with said microprocessor. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification